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No exploitation reportedFix available

CVE-2024-56326

No exploitation reported by the sources we read.

  • Published2024-12-23
  • Fixed in3.1.5
  • WeaknessCWE-1336 · CWE-693

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Jinja is an extensible templating engine. Prior to 3.1.5, An oversight in how the Jinja sandboxed environment detects calls to str.format allows an attacker that controls the content of a template to execute arbitrary Python code. To exploit the vulnerability, an attacker needs to control the content of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates. Jinja's sandbox does catch calls to str.format and ensures they don't escape the sandbox. However, it's possible to store a reference to a malicious string's format method, then pass that to a filter that calls it. No such filters are built-in to Jinja, but could be present through custom filters in an application. After the fix, such indirect calls are also handled by the sandbox. This vulnerability is fixed in 3.1.5.

Timeline

dates in UTC
  1. 2024-12-2316:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-56326?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-56326?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Palletsprojects jinja
BranchAffectedFixed in
3.1< 3.1.53.1.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • fence-agentsRocky Linux:9all versions · fixed in 0:4.10.0-76.el9_5.4
  • fence-virtdAlmaLinux:9all versions · fixed in 4.10.0-76.el9_5.4.alma.1and 12 other packages
  • python3-jinja2AlmaLinux:9all versions · fixed in 2.11.3-7.el9_5
  • python3-jinja2AlmaLinux:8all versions · fixed in 2.10.1-6.el8_10

Vendor advisories

  • RHSA-2025:3374 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Developer Hub 1.5.1 release.

  • RHSA-2025:2700 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.56 security update

  • RHSA-2025:1710 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.15.46 security and extras update

  • RHSA-2024:6121 Red Hat Product Security191 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.18.1 security and extras update

  • RHSA-2025:1123 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.16.34 security and extras update

  • RHSA-2025:0875 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.17.15 security and extras update

1 more advisory

Full record on NVD

Fix

  1. Update Palletsprojects jinja to 3.1.5
  2. Vendor fix Red Hat Product Security RHSA-2025:3374 · 1 productFor more about Red Hat Developer Hub, see References links
  3. Vendor fix Red Hat Product Security RHSA-2025:2700 · 1 productFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.…
  4. Vendor fix Red Hat Product Security RHSA-2025:1710 · 4 productsFor OpenShift Container Platform 4.15 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.15/release_notes/ocp-4-1…
  5. Vendor fix Red Hat Product Security RHSA-2024:6121 · 191 productsFor OpenShift Container Platform 4.18 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.18/release_notes/ocp-4-1…
  6. Vendor fix Red Hat Product Security RHSA-2025:1123 · 4 productsFor OpenShift Container Platform 4.16 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.16/release_notes/ocp-4-1…
  7. Vendor fix Red Hat Product Security RHSA-2025:0875 · 4 productsFor OpenShift Container Platform 4.17 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.17/release_notes/ocp-4-1…

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2024-12-27
  • OpenCVESSVC decisionnone—
  • CNACVSS 4.05.4read 2026-10-23
  • CISA-ADPCVSS 3.17.82024-12-24
  • CNAweakness (CWE)CWE-1336, CWE-693read 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2024-12-23
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2024-56326?

Jinja is an extensible templating engine. Prior to 3.1.5, An oversight in how the Jinja sandboxed environment detects calls to str.format allows an attacker that controls the content of a template to execute arbitrary Python code. To exploit the vulnerability, an attacker needs to control the content of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates. Jinja's sandbox does catch calls to str.format and ensures they don't escape the sandbox. However, it's possible to store a reference to a malicious string's format method, then pass that to a filter that calls it. No such filters are built-in to Jinja, but could be present through custom filters in an application. After the fix, such indirect calls are also handled by the sandbox. This vulnerability is fixed in 3.1.5.

Is CVE-2024-56326 actively exploited?

Active exploitation of CVE-2024-56326 has not been confirmed. Its EPSS score was 0.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-56326?

CVE-2024-56326 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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